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ASTM International - ASTM E1685-20

Standard Practice for Measuring the Change in Length of Bolts Using the Ultrasonic Pulse-Echo Technique

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Organization: ASTM International
Publication Date: 1 October 2020
Status: active
Page Count: 5
ICS Code (Measuring instruments): 17.040.30
ICS Code (Fasteners in general): 21.060.01
significance And Use:

5.1 The techniques described provide for the measurement of change in length of a fastener. Such measurements are made from one end of the specimen without requiring access to the rear... View More

scope:

1.1 This practice covers a procedure for measuring changes in length of threaded bolts using the ultrasonic pulse-echo technique.

1.2 This procedure is normally intended for metal bolting 6.3 mm or more in nominal diameter with effective length-to-diameter ratios of 2:1 or greater.

1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

Document History

ASTM E1685-20
October 1, 2020
Standard Practice for Measuring the Change in Length of Bolts Using the Ultrasonic Pulse-Echo Technique
1.1 This practice covers a procedure for measuring changes in length of threaded bolts using the ultrasonic pulse-echo technique. 1.2 This procedure is normally intended for metal bolting 6.3 mm or...
November 1, 2013
Standard Practice for Measuring the Change in Length of Fasteners Using the Ultrasonic Pulse-Echo Technique
1.1 This practice covers a procedure for measuring changes in length of threaded fasteners using conventional ultrasonic pulse-echo bolt-measuring instrumentation which has been properly calibrated....
December 1, 2006
Standard Practice for Measuring the Change in Length of Fasteners Using the Ultrasonic Pulse-Echo Technique
The techniques described provide for the indirect measurement of change in length of a fastener. Such measurements are made from one end of the specimen without requiring access to the rear surface....
October 10, 2000
Standard Practice for Measuring the Change in Length of Fasteners Using the Ultrasonic Pulse-Echo Technique
1.1 This practice covers a procedure for measuring changes in length of threaded fasteners using conventional ultrasonic, pulse-echo bolt-measuring instrumentation which has been properly calibrated....
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